One-loop corrections as origin of spontaneous chiral symmetry breaking in the massless chiral sigma model(Hadrons at finite density)
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概要
- 論文の詳細を見る
We study the effect of one-loop corrections from nucleon together with those from boson in the massless chiral sigma model, where we perform the Coleman-Weinberg renormalization procedure[1, 2]. We find that the renormalization scale plays an important role for the breaking of the symmetry between fermion (nucleon) and boson, and eventually for the chiral symmetry at the same time. In addition, we find that the naturalness restores by means of the introduction of the vacuum fluctuation from both nucleon and boson. Finally we obtain a stable effective potential with the effect of Dirac sea in the chiral model for the first time.
- 素粒子論グループ 素粒子研究編集部の論文
- 2006-11-20
著者
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土岐 博
Research Center For Nuclear Physics (rcnp) Osaka University
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TOKI Hiroshi
Research Center for Nuclear Physics, Osaka University
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Ogawa Yoko
Research Center For Nuclear Physics (rcnp) Osaka University
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Hosaka A
Rcnp Osaka Univ.
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TAMENAGA Setsuo
Research Center for Nuclear Physics (RCNP), Osaka University
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HAGA Akihiro
Research Center for Nuclear Physics (RCNP), Osaka University
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Ogawa Yoko
RCNP, Osaka Univ.
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Haga Akihiro
Research Center For Nuclear Physics (rcnp) Osaka University
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Toki Hiroshi
Research Center For Nuclear Physics (rcnp) Osaka University
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Tamenaga Setsuo
Research Center For Nuclear Physics (rcnp) Osaka University
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Toki Hiroshi
Research Center For Nuclear Physical Osaka University
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OGAWA Yoko
Department of Physics, Osaka University
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